Unitronic Crank Pulley Stage 1 to Stage 3 Upgrade Kit B8 S4 · S5 · 8R SQ5

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UnitronicSKU: UH011-BTA

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NOTE: This is for customers with existing Stage 1 or Stage 1+ tunes.

Unitronic presents its Crank Pulley Upgrade Kit for the Audi B8 S4, S5 and 8R SQ5 platforms!  This kit comes with Unitronic's Stage 3 ECU software, which combined with the Pulley can yield gains that give you up to 493HP and 441TQ.

The Crank Pulley is 187mm in size, includes the 7PK1300 belt.  This pulley kit combined with Unitronic's top-of-the-line calibration software ensures maximum performance for your vehicle with no compromise to drivability and reliability.


  • Gains up to 493HP / 441TQ
  • 6061-T6 Aluminum construction
  • Simple and easy installation design
  • Black anodized finish

What's Included:

  • Unitronic 187mm Crank Pulley
  • 7PK1300 Belt
  • Audi Crankshaft Bolts
  • Stage 3 Unitronic ECU software
  • Unitronic UniCONNECT+ Cable (OPTIONAL)

Vehicle Fitment

Model   + Drivetrain  
8R SQ5 3.0L SC V6
B8 S4 3.0L SC V6
B8 S5 3.0L SC V6

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